Protect Every River, Lake and Wetland

Surface freshwater is the source of most of the water we drink. Join the network keeping rivers, lakes and reservoirs clean, flowing and alive.

Join the Alliance

About ClearWater Alliance

A science-led network dedicated to the protection and restoration of the world's surface water resources.

Calm lake surrounded by forest

Our Mission

ClearWater Alliance works to protect surface water — rivers, lakes, reservoirs and wetlands — from pollution, over-abstraction and habitat loss, so that freshwater ecosystems and the communities that depend on them can thrive.

Founded in 2011, we have grown from a single river monitoring group into an international alliance of 86,000 volunteers, 2,400 monitoring sites and 180 partner organisations across 46 river basins.

Our approach combines open water-quality data, catchment-scale restoration and direct engagement with basin authorities, utilities and agricultural producers.

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Kilometres of River Restored

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Community Volunteers

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Water Monitoring Sites

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River Basins Covered

Our Initiatives

The programmes we run to keep surface freshwater clean, connected and resilient.

Mountain lake and catchment

Watershed Restoration

Reconnecting floodplains, replanting riparian buffers and removing obsolete barriers so that rivers can flow, filter and recover naturally.

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Freshwater lake and boat

Pollution Control

Tracing agricultural runoff, industrial discharge and plastic loads, then working with farmers and utilities to cut pollution at its source.

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Close-up of water surface

Community Monitoring

Equipping local groups with low-cost sensors and open protocols, so that every river, lake and reservoir has someone watching its water quality.

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Join the Freshwater Movement

Surface water is finite, shared and vulnerable. Adopt a river reach, host a monitoring site, or bring your organisation into the Alliance.

Become a Member